CN107797073A - Dynamic lithium battery group real-time monitoring system and its monitoring method - Google Patents
Dynamic lithium battery group real-time monitoring system and its monitoring method Download PDFInfo
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- CN107797073A CN107797073A CN201711173285.9A CN201711173285A CN107797073A CN 107797073 A CN107797073 A CN 107797073A CN 201711173285 A CN201711173285 A CN 201711173285A CN 107797073 A CN107797073 A CN 107797073A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
Abstract
The invention discloses a kind of dynamic lithium battery group real-time monitoring system, including lithium battery group, information acquisition module, data monitoring module, battery pack control module, communication module and host computer and display screen.The invention also discloses a kind of dynamic lithium battery method for real-time monitoring, including establishing lithium battery management system, information acquisition module carries out data acquisition, and data monitoring module carries out comparing analysis, display screen display carries out data and shown, related data is handled accordingly by host computer.The present invention carries out every data acquisition by information acquisition module lithium battery group, intelligent decision is realized by comparing, realize real-time battery pack monitoring, the processing of simple problem can be carried out using vehicle-mounted instrument when battery pack breaks down, there is provided more preferable Consumer's Experience and the safety for making measure guarantee lithium battery in time by monitoring.
Description
Technical field
The present invention relates to technical field of electronic control, specially a kind of dynamic lithium battery group real-time monitoring system and its monitoring
Method.
Background technology
New-energy automobile occupies more focus in automotive field at present, and the ecology potential of electric automobile must turn into automobile industry
In a unexpected rival, develop with the technology of power system of electric automobile, the power supply safety of Full Vehicle System becomes further skill
Art is reformed, particularly the monitoring technology of battery.
Existing patent CN104638718A provides a kind of battery of electric vehicle intelligent management system and method.The system includes
Mobile handheld terminal, remote computer terminal and battery monitoring device, battery monitoring device include CPU, battery management
Control module, monomer battery voltage acquisition interface, current detection module, switch module, memory cell, wireless communication module and temperature
Sensor is spent, battery of electric vehicle, current detection module, switch module and load in series are into a loop, the control of switch module
End electrically connects with battery management control modules, and current detection module electrically connects with battery management control modules, and cell passes through
Monomer battery voltage acquisition interface electrically connects with battery management control modules, CPU respectively with memory cell, wireless
Communication module, temperature sensor and battery management control modules electrical connection.The technological merit is by mobile handheld terminal energy
The situation of battery of electric vehicle is connected in real time, and the monitoring to battery of electric vehicle is relatively simple, but the technology is electric car electricity
In cell monitoring, the more electric automobile suitable for static is only capable of providing and understands or instruct in advance in the vehicle in traveling
Where the problem of battery, because battery belongs to field of electronic systems, in general manual operations can not solve subproblem, including nothing
Method release battery because it is simple the reason for produced problem, cause battery pack to be damaged completely.
Prior art CN106025399A, which provides a kind of automobile storage battery monitoring method and system, this method, to be included：Thanks to
Electric data recording process and power shortage reason determination process, when electric on vehicle, the magnitude of voltage of battery is obtained, and according to battery
Magnitude of voltage judge current battery whether power shortage, if battery is in power shortage state, store current time and magnitude of voltage；When
When vehicle-state changes, current time and the residual electric quantity of battery are obtained, and stored；According to the correlation of storage
Data determine power shortage reason.The technological merit is due to the power shortage data under storage different vehicle state, according to losing for record
Electric data determine the reason for power shortage occurs for battery.But the technology is only limitted to battery relative to the monitoring of automobile storage battery
Power shortage state, temperature anomaly, Current Voltage for battery pack do not have systematic judgement and processing method extremely.
The content of the invention
In order to overcome battery monitor system imperfection, monitoring method in existing background technology not cause battery pack loss comprehensively
Rate is high, ignores monitoring and the problem of more convenient Consumer's Experience that debugging combined technology is brought, the invention provides one
Kind dynamic lithium battery group real-time monitoring system, including：
Lithium battery group, information acquisition module, data monitoring module, battery pack control module and communication module, its feature exist
In：
Described information acquisition module is electrically connected with the lithium battery group, special for gathering each item data of the lithium battery group
Sign, it, which includes information, includes single battery core voltage acquisition unit, battery set charge/discharge current acquisition unit and battery core temperature acquisition
Unit；
The data monitoring module is electrically connected with described information acquisition module, for by each item data of the lithium battery group with
Default labeled data is compared, and it includes temperature detecting unit, current detecting unit and voltage detection unit；
The battery pack control module is electrically connected with the data monitoring module, for electric to the lithium according to data message
Pond group corresponding data is adjusted, and it includes heating refrigeration administrative unit, charge and discharge protecting control unit and battery core balanced management
Unit；
The communication module includes CAN communication module and RS485 communication modules, and the battery pack control module passes through respectively
CAN communication module communication connects display screen and communicates connection host computer by RS485 communication modules, for showing lithium battery group number
It is believed that cease and data regulation is carried out to lithium battery group using host computer.
Preferably, the lithium battery group is electrically connected with the single battery core voltage acquisition unit, battery set charge/discharge electric current
Collecting unit and battery core temperature collecting cell.
Preferably, the voltage detection unit is electrically connected with the single battery core voltage acquisition unit, the current detecting
Unit is electrically connected with the battery set charge/discharge current acquisition unit, and the temperature detecting unit is electrically connected with the battery core temperature
Collecting unit.
Preferably, the heating refrigeration administrative unit is electrically connected with the temperature detecting unit, for adjusting battery core temperature,
The charge and discharge protecting control unit is electrically connected with the current detecting unit, described for regulating cell group charging and discharging currents
Battery core balanced management unit is electrically connected with the voltage detection unit, for adjusting single battery core voltage.
Preferably, the CAN communication module is electrically connected with temperature detecting unit, current detecting unit, voltage detection unit
And display screen, for the temperature of lithium battery, electric current and information of voltage to be shown on a display screen, the RS485 communication modules electricity
Property connection heating refrigeration administrative unit, charge and discharge protecting control unit, battery core balanced management unit and host computer, for by
Position machine sends a command to battery pack control module and the temperature of lithium battery group, electric current and voltage data is adjusted accordingly, should
Host computer includes vehicle-mounted instrument.
A kind of dynamic lithium battery group method for real-time monitoring, comprises the following steps：
S1, establish lithium battery management system；
S2, information acquisition module carry out the detection of each item data to lithium battery；
S3, data monitoring module carry out comparing analysis according to the testing result of information acquisition module；
S4, the testing result for showing on-screen-display message acquisition module and data monitoring modular analysis result；
S5, according to the information on display screen related data is handled accordingly by host computer.
Preferably, described information acquisition module carries out the detection of each item data to lithium battery including passing through single battery core voltage
Collecting unit carries out voltage data collection to the single lithium battery in lithium battery group, passes through battery set charge/discharge current acquisition unit
Current data in lithium battery group charge and discharge process is acquired, by battery core temperature collecting cell to the single lithium of lithium battery group
Battery temperature data is acquired.
Preferably, the data monitoring module carries out comparing analysis according to the testing result of information acquisition module includes
The default normal data of data monitoring module calls is compared with the data that information acquisition module collects, and by comparison result
It is sent to by CAN communication module on display screen.
Preferably, the analysis result bag of the testing result of the display on-screen-display message acquisition module and data monitoring modular
Include when the preset data that data detection module is transferred has certain numerical value difference with the data collected, display screen display alarm is used
The warning information at family.
Preferably, the information according on display screen is included upper by host computer to the corresponding processing of related data progress
Machine sends regulating command by RS485 communication modules and carries out corresponding data regulation to battery pack control module.
Compared with prior art, the beneficial effects of the invention are as follows：By information acquisition module to single battery core voltage, battery
Group charging and discharging currents and battery core temperature carry out data acquisition respectively, and realization intelligence is compared by default data standard and sentences
It is disconnected, alarm is sent according to judged result automatically, even if can also find battery failures information in time when driving, realizes reality
When battery pack monitoring.After intelligent decision, the simple questions such as local cell temperature exception can be entered using vehicle-mounted instrument
Row processing, there is provided more preferable Consumer's Experience and pass through monitoring and make the safety that measure ensures lithium battery in time.
Brief description of the drawings
Fig. 1 is the system block diagram of dynamic lithium battery group real-time monitoring system of the present invention；
Fig. 2 is the structural representation of dynamic lithium battery group real-time monitoring system information acquisition module of the present invention；
Fig. 3 is the structural representation of dynamic lithium battery group real-time monitoring system data monitoring modular of the present invention；
Fig. 4 is the structural representation of dynamic lithium battery group real-time monitoring system battery pack control module of the present invention；
Fig. 5 is the structural representation of dynamic lithium battery group real-time monitoring system of the present invention；
Fig. 6 is the block diagram of dynamic lithium battery group method for real-time monitoring of the present invention；
Fig. 7 is the method flow diagram of dynamic lithium battery group method for real-time monitoring of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in Fig. 1 and Fig. 5, a kind of dynamic lithium battery group real-time monitoring system, including lithium battery group, information gathering mould
Block, data monitoring module, battery pack control module and communication module.
Information acquisition module is electrically connected with lithium battery group, and for gathering lithium battery group items data characteristics, it includes information
Including single battery core voltage acquisition unit, battery set charge/discharge current acquisition unit and battery core temperature collecting cell.
Data monitoring module is electrically connected with information acquisition module, for by each item data of lithium battery group and default labeled data
It is compared, it includes temperature detecting unit, current detecting unit and voltage detection unit.
Battery pack control module be electrically connected with data monitoring module, for according to data message to lithium battery group corresponding data
It is adjusted, it includes heating refrigeration administrative unit, charge and discharge protecting control unit and battery core balanced management unit.
Communication module includes CAN communication module and RS485 communication modules, battery pack control module pass through CAN communication respectively
Module communication connects display screen and communicates connection host computer by RS485 communication modules, for showing lithium battery group data message
And data regulation is carried out to lithium battery group using host computer.
As shown in Figure 2 and Figure 5, lithium battery group is electrically connected with single battery core voltage acquisition unit, battery set charge/discharge electric current
Collecting unit and battery core temperature collecting cell.
As shown in Figure 3 and Figure 5, voltage detection unit is electrically connected with single battery core voltage acquisition unit, current detecting unit
Battery set charge/discharge current acquisition unit is electrically connected with, temperature detecting unit is electrically connected with battery core temperature collecting cell.
As shown in Figure 4 and Figure 5, heating refrigeration administrative unit is electrically connected with temperature detecting unit, for adjusting battery core temperature,
Charge and discharge protecting control unit is electrically connected with current detecting unit, for regulating cell group charging and discharging currents, battery core balanced management
Unit is electrically connected with voltage detection unit, for adjusting single battery core voltage.
As shown in figure 5, CAN communication module be electrically connected with temperature detecting unit, current detecting unit, voltage detection unit and
Display screen, for the temperature of lithium battery, electric current and information of voltage to be shown on a display screen, RS485 communication modules are electrically connected with
Heating refrigeration administrative unit, charge and discharge protecting control unit, battery core balanced management unit and host computer, for being sent out by host computer
Instruction is sent to be adjusted accordingly to the temperature of lithium battery group, electric current and voltage data to battery pack control module, host computer bag
Include vehicle-mounted instrument.
As shown in Figure 6 and Figure 7, a kind of dynamic lithium battery group method for real-time monitoring, comprises the following steps：
S1, establish lithium battery management system；
S2, information acquisition module carry out the detection of each item data to lithium battery；
S3, data monitoring module carry out comparing analysis according to the testing result of information acquisition module；
S4, the testing result for showing on-screen-display message acquisition module and data monitoring modular analysis result；
S5, according to the information on display screen related data is handled accordingly by host computer.
The detection that information acquisition module carries out each item data to lithium battery includes passing through single battery core voltage acquisition unit pair
Single lithium battery in lithium battery group carries out voltage data collection, by battery set charge/discharge current acquisition unit to lithium battery group
Current data in charge and discharge process is acquired, by battery core temperature collecting cell to the single lithium battery temperature number of lithium battery group
According to being acquired.
Data monitoring module carries out comparing analysis according to the testing result of information acquisition module includes data monitoring mould
The data that block transfers default normal data with information acquisition module collects are compared, and comparison result is led to by CAN
News module is sent on display screen.
Show that the testing result of on-screen-display message acquisition module and the analysis result of data monitoring modular are included when data are examined
When the data surveyed the preset data of module calls and collected have certain numerical value difference, the alarm signal of display screen display alarm user
Breath.
Host computer is included to the corresponding processing of related data progress by host computer according to the information on display screen and passes through RS485
Communication module sends regulating command and carries out corresponding data regulation to battery pack control module.
After the single battery core voltage that single battery core voltage acquisition unit collects is delivered to voltage detection unit, voltage inspection
Survey unit the data are compared with standard voltage data, when the error between the voltage data and normal voltage collected is remote
During beyond default error range, now single battery core voltage occurs abnormal, and data monitoring module adopts abnormal conditions and information
The data that collection unit collects are sent to display screen by CAN communication module and shown, and by abnormal conditions in display screen
Upper display warning information.Now, according to the abnormal voltage data of display screen display, carried out using vehicle-mounted host computer simple pre-
Processing, i.e. host computer transmit instruction to the battery core balanced management unit of battery pack control module to the single battery core by RS485
Power down process is carried out, to ensure that dynamical system can still work and the abnormal single battery core is protected, is avoided further
Damage.
When the battery set charge/discharge electric current that battery set charge/discharge current acquisition unit collects is delivered to current detecting unit
Afterwards, the data are compared current detecting unit with normalized current data, when the current data and normalized current collected it
Between error far beyond default error range when, now battery set charge/discharge occurs abnormal, and data monitoring module is by abnormal feelings
The data that condition and information acquisition unit collect are sent to display screen by CAN communication module and shown, and by abnormal feelings
Condition shows warning information on a display screen.Now, according to the abnormal current data of display screen display, entered using vehicle-mounted host computer
The simple pretreatment of row, i.e. host computer transmit instruction to the charge and discharge protecting control unit of battery pack control module by RS485
Power down process is carried out to lithium battery group, to avoid the further damage of lithium battery group.
After the single battery core temperature that battery core temperature collecting cell collects is delivered to temperature detecting unit, temperature detection list
Member the data are compared with normal temperature data, when the error between the temperature data and normal temperature collected far beyond
During default error range, now single battery core temperature occurs abnormal, and data monitoring module is by abnormal conditions and information gathering list
The data that member collects are sent to display screen by CAN communication module and shown, and abnormal conditions are shown on a display screen
Show warning information.Now, according to the abnormal temperature data of display screen display, simple pre- place is carried out using vehicle-mounted host computer
Reason, i.e. host computer transmit instruction to the heating refrigeration administrative unit of battery pack control module by RS485 and the single battery core are entered
Row heating or refrigeration processing, promote the single battery core to reach normal working temperature and ensure dynamical system steady operation.
Finally it should be noted that：The preferred embodiments of the present invention are these are only, are not intended to limit the invention, although
The present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be right
Technical scheme described in foregoing embodiments is modified, or to which part technical characteristic carry out equivalent substitution, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc., the protection of the present invention should be included in
Within the scope of.
Claims (10)
1. a kind of dynamic lithium battery group real-time monitoring system, including lithium battery group, information acquisition module, data monitoring module, electricity
Pond group control module and communication module, it is characterised in that：
Described information acquisition module is electrically connected with the lithium battery group, for gathering the lithium battery group items data characteristics, its
Include single battery core voltage acquisition unit, battery set charge/discharge current acquisition unit and battery core temperature collecting cell including information；
The data monitoring module is electrically connected with described information acquisition module, for by each item data of the lithium battery group with it is default
Labeled data is compared, and it includes temperature detecting unit, current detecting unit and voltage detection unit；
The battery pack control module is electrically connected with the data monitoring module, for according to data message to the lithium battery group
Corresponding data is adjusted, and it includes heating refrigeration administrative unit, charge and discharge protecting control unit and battery core balanced management unit；
The communication module includes CAN communication module and RS485 communication modules, and the battery pack control module passes through CAN respectively
Communication module communication connects display screen and communicates connection host computer by RS485 communication modules, for showing lithium battery group data
Information and use host computer carry out data regulation to lithium battery group.
A kind of 2. dynamic lithium battery group real-time monitoring system according to claim 1, it is characterised in that the lithium battery group
It is electrically connected with the single battery core voltage acquisition unit, battery set charge/discharge current acquisition unit and battery core temperature collecting cell.
A kind of 3. dynamic lithium battery group real-time monitoring system according to claim 1, it is characterised in that the voltage detecting
Unit is electrically connected with the single battery core voltage acquisition unit, and the current detecting unit is electrically connected with the battery set charge/discharge
Current acquisition unit, the temperature detecting unit are electrically connected with the battery core temperature collecting cell.
A kind of 4. dynamic lithium battery group real-time monitoring system according to claim 1, it is characterised in that the heating refrigeration
Administrative unit is electrically connected with the temperature detecting unit, and for adjusting battery core temperature, the charge and discharge protecting control unit is electrical
The current detecting unit is connected, for regulating cell group charging and discharging currents, the battery core balanced management unit is electrically connected with institute
Voltage detection unit is stated, for adjusting single battery core voltage.
A kind of 5. dynamic lithium battery group real-time monitoring system according to claim 1, it is characterised in that the CAN communication
Module is electrically connected with temperature detecting unit, current detecting unit, voltage detection unit and display screen, for by the temperature of lithium battery
Degree, electric current and information of voltage show that on a display screen the RS485 communication modules are electrically connected with heating refrigeration administrative unit, filled
Discharge prevention control unit, battery core balanced management unit and host computer, for sending a command to battery pack control by host computer
Module is adjusted accordingly to the temperature of lithium battery group, electric current and voltage data, wherein, the host computer includes vehicle-mounted instrument.
6. a kind of dynamic lithium battery group method for real-time monitoring, it is characterised in that comprise the following steps：
S1, establish lithium battery management system；
S2, information acquisition module carry out the detection of each item data to lithium battery；
S3, data monitoring module carry out comparing analysis according to the testing result of information acquisition module；
S4, the testing result for showing on-screen-display message acquisition module and data monitoring modular analysis result；
S5, according to the information on display screen related data is handled accordingly by host computer.
7. a kind of dynamic lithium battery group method for real-time monitoring according to claim 6, it is characterised in that described information gathers
The detection that module carries out each item data to lithium battery is included by single battery core voltage acquisition unit to single in lithium battery group
Lithium battery carries out voltage data collection, by battery set charge/discharge current acquisition unit to the electricity in lithium battery group charge and discharge process
Flow data is acquired, and the single lithium battery temperature data of lithium battery group is acquired by battery core temperature collecting cell.
A kind of 8. dynamic lithium battery group method for real-time monitoring according to claim 6, it is characterised in that the data monitoring
Module carries out comparing analysis according to the testing result of information acquisition module includes the default standard of data monitoring module calls
Data are compared with the data that information acquisition module collects, and comparison result is sent into display by CAN communication module
On screen.
A kind of 9. dynamic lithium battery group method for real-time monitoring according to claim 6, it is characterised in that the display screen display
Show that the testing result of information acquisition module and the analysis result of data monitoring modular are included when what data detection module was transferred presets
When data have certain numerical value difference with the data collected, the warning information of display screen display alarm user.
10. a kind of dynamic lithium battery group method for real-time monitoring according to claim 6, it is characterised in that described according to display
Information on screen includes host computer to the corresponding processing of related data progress by host computer and passes through RS485 communication modules transmission tune
Section instruction carries out corresponding data regulation to battery pack control module.
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| CN108400397A (en) * | 2018-03-29 | 2018-08-14 | 中科创能实业有限公司 | Battery management system and platform |
| CN108674226A (en) * | 2018-05-18 | 2018-10-19 | 华中科技大学 | A kind of lithium battery balanced management system based on half platform in kind |
| CN108761337A (en) * | 2018-05-03 | 2018-11-06 | 自贡同发荣实业有限公司 | A kind of lithium battery management system |
| CN109286048A (en) * | 2018-10-31 | 2019-01-29 | 无锡艾立德智能科技有限公司 | A kind of novel lithium battery management system |
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| CN111614635A (en) * | 2020-04-30 | 2020-09-01 | 南京理工大学 | Battery state information acquisition system based on 4G wireless communication |
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| CN108400397A (en) * | 2018-03-29 | 2018-08-14 | 中科创能实业有限公司 | Battery management system and platform |
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| CN108674226A (en) * | 2018-05-18 | 2018-10-19 | 华中科技大学 | A kind of lithium battery balanced management system based on half platform in kind |
| CN109286048A (en) * | 2018-10-31 | 2019-01-29 | 无锡艾立德智能科技有限公司 | A kind of novel lithium battery management system |
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| CN112666466A (en) * | 2019-10-16 | 2021-04-16 | 西南科技大学 | Method for monitoring key parameters of power lithium battery pack in real time |
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| CN112731186A (en) * | 2020-12-15 | 2021-04-30 | 宝能(西安)汽车研究院有限公司 | Battery pack safety early warning system, vehicle and early warning control method |
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| CN113542085B (en) * | 2021-06-28 | 2022-08-02 | 浙江富特科技股份有限公司 | Method for rapid fault protection diagnosis of vehicle-mounted power supply |
| WO2023279651A1 (en) * | 2021-07-09 | 2023-01-12 | 浙江天宏锂电股份有限公司 | Lithium iron phosphate battery pack control system and method for electric motorcycle |
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